Climate almanac
Olonne-sur-Mer
Pays de la Loire, France · 46.54°, -1.77°
What is the climate like in Olonne-sur-Mer?
The best time to visit Olonne-sur-Mer is typically May – September, with trip comfort peaking in July (8.2/10). Olonne-sur-Mer is warmest in August, when daily highs average 72°F (22°C), and coolest in January, when lows fall to about 43°F (6°C). The wettest month is typically November and the driest is July; the year sees roughly 34 in (862 mm) of precipitation.
- Best time to visitMay – September — comfort peaks in July (8.2/10)
- Warmest monthAugust — average high 72°F (22°C)
- Coolest monthJanuary — average low 43°F (6°C)
- Wettest monthNovember (4.6 in (117 mm))
- Driest monthJuly (1.1 in (29 mm))
- Annual precipitation34 in (862 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromPte De Chassiron, 61 km away (1917-2026)